Chain saw setting, jointing, and filing device



Jan. 8, 1946; R. H. WILSON CHAIN SAW SETTING, JOINTING, AND FILING DEVICE 2 Sheets-Sheet l Filed May 15, 1944 HIV EN TOR. RYCE H, WILSON Jan. 8, 1946. R. H. WILSON CHAIN SAW SETTING, JOINTING, AND FILING DEVI CE Filed May 15, 1944 2 Sheets-Sheet 2 INVENTOIRJ RYCE H. WILSON i l. lfflrlllllmii Patented Jan. 8, 1946 UNITED STATES PATENT OFFICE- CHAIN SAW SETTING, JOINTING, AND

' FILING DEVICE Ryce H. Wilson, Roseburg, Oreg. Application May 13, 1944, SerialNo. 535,464

7 Claims.

This invention relates to saw jointing, setting and filing devices and is particularly adapted to be used for conditioning chain saws.

The primary object of the invention is to pr vide a device for supporting a chain saw thereon for jointing, setting and filing the saw.

A further object of the invention is to mount a special jointer gauge upon the device for jointing the teeth of a chain saw.

A further object of the'invention is to provide a special saw setting tool in connection with the device for setting the teeth of the saw.

A further object of the invention is to provide means for moving the chain saw through the machine by a mechanical ratchet device while the saw is being conditioned.

A further object of the invention is to provide a chain saw supporting unit that can'be raised or lowered or rotated aboutits'v'ertical axis while the operator is conditioning the saw.

These and other incidental objects will be apparent in the drawings, specifications and claims.

Referring to the drawings: I I

Figure 1 is a side elevation of mynew and im- Proved chain saw conditioning device, illustrating the general assembly. i I

Figure 2 is a fragmentary side view of the chain adjacent the setting tool, partially broken away for convenience of illustration I I Figure 3 is a fragmentary view of the sprocket for supporting the moving chain saw, partially broken away to show the chain I mounting and driving ratchet. I

Figure l is a cross sectional view of the saw holding frame, taken on line 44 of Figure 1, looking in the direction indicated and especially illustrating the saw setting device. I

Figure 5 is a fragmentary plan view of the saw setting device, partially broken away for convenience of illustration, together with aplan view of the jointing device taken on line 5--5 of Figure 1.

Figure 6 is a sectional view, taken on line 6-6 of Figure 1, illustrating the saw set'being in position for setting one of the teeth of the saw.

Figure 7 is a sectional view, taken online 1-1 of Figure 1, illustrating the jointing gauge.

Figure 8 illustrates the jointing gauge removed from the frame of the device, the gau e having the gauging surface at an angle different than that illustrated in Figure 7. r

In the drawings:

My new and improved chain saw holding device consists of a vertical pedestal l, revolvably, mounted upon a base 2. Upon the upper end of the Pedestal is mounted a T-frame 3, having a downwardly extending post 4 for entering the upper the die out through .the opening 29;

end of the pedestal I, being held in any desired elevated position bythe locking bolt 5.

A secondary frame 1 is secured to the frame ,3 by the bolts 8 and have a groove 9 along'itsupper surface for supporting the chain saw 6 thereon. The chain 6 is trained about a driving sprocket l0, idler pulleys II and I2, the chain having its outer links l3 running over the surface 14 of the frame I and its inner guides i5 running within the slot 9 of the frame I, holding the chain inline upon the frame, similar to its mounting uponthe saw frame not here shown. Various lengths of chain saws may be mounted to the device. This is accomplished by the extension frame 3A working through the guides 3B of the main frame 3. This extension frame may be locked in any position by the cap screw 30. v

The idler I2 provides a fine adjustment and tension to the chain while being conditioned. The pulley I2 is mounted to the lever arm I6, which is mounted to the pedestal I at 17. A weight I8 is mounted to the bar it for providing the desired amount of tension to the chain 6.

I will now first describe the operation of setting the cutter teeth I9 of the chain 6. Secured to the frame 1, best illustrated in Figures 4, 5 and 6, is a tooth setting device. 20. This device may be secured to the frame by any suitable means,'as bolts 2|. Amovable die 22 is slidably mounted within the frame 23, resting on the surface 24 on its lower side and being locked in fixed position by the set screw 25 on its upper side. Lateral adjustment may be applied to the die 22 by the hand wheel and screw 26.

The surface 28 of the die 22 is formed to a desired angle to set the tooth, and this angle may vary for different saw settings required for cutting various types of timber, therefore, I have provided an easy way of interchanging the die 22 by making it possible to remove the same by backing off the hand set screw 26 and removing A lever 36 is pivotally mounted to the frame 20 at 3| and carries a shaping die 32 therein. This die is made to correspond to the die 22 and is removable. I

In the operation of setting the saw teethfthe lever 30 is brought down to the position shown in Figure 6. It is first desirable to lock the chain relative to the die 22 before setting the tooth. This is accomplished through the operation-of the lever 33, which is pivotally mounted at 34 to the bracket 35, which is in turn secured to the"frame I. The cam 36 of the lever 33 engages the cam 37 of the lever 38, which is also pivotally mounted within the frame 35 at 39.

I trom 'sstnaybeasspeiatea yvi h'ti e irsne wneei A set screw 40 is adjustably positioned within of the jointer and the saw teeth. When the tooth the lever 38 and contacts the chain 6, forcing the is filed to the proper height the upper ends of the same against the points 21 of the frame 23 when guide bars 62 and 63 will limit the cut of the the arm 33 is forced down by the action of the file on the tooth.

lever arm 30, contacting the spring slightly 5 I do not wish to be limited to the exact mebefore the die 32 engages the tooth IQ of the saw, chanical construction as illustrated and described, thereby holding the saw chain rigidly while the as other modified forms of mechanical equivalents arm 30 "is further lowered forcing thefdi'e32 tomay be used 'in carrying out the objects of my wards the 'saw tooth-and the 'die' 22, settingthe invention, and still coining Within the. scope of tooth. my claims.

When the tooth has been set, as above de- What is claimedis: V scribed, the lever 30 is raised to the -position ill. A chain saw ointing, setting and filing delustrated in Figures 1 and 4, atwh ich'tiiiieltftie memes-saw supporting frame formed for chain saw is moved forward to the next tooth g h g the saw, means for feeding the saw in to be set. This is accomplished in the foll'o wifig' l s'tp-by step movement in said frame, a saw setmanner. A bell crank 42, pivotally mounted to ting mea nsf etting the teeth of the saw inthe stub shaft IDA, carries a ratchet mins" cludihg'a'ri ai'ivil'and a manually operable hand on its arm 43A, best illustrated in Figure 3. The V levn' a holding lever pivotally mounted below the f the. driving hand lever, an element carried by the h me. 3 '3 the 1 ?;t0; i"E a 'm 5W a fit g link in the'fraina' ipr .7 tot -frramegz;

ga eiameby and in the incitement lvr I I '3. a'censtrueeidfia's liefin' the member carried by the o alFV- L m i a us a le.i nf-ffieib's v k t of such element in the em t A J, i tame-marsh be rank 42' K g the paw ts engages "the teeth 43 "of "the drive sprocket 'rn.

. t insen hr ghf thfesiots the'galu'ge "54, rename a gu e jffo I the; g u e "while being adjusted up or frame 'afidhav'ing anelement to;f ce-th I teeth toward andinto contact with =tf1e any-i be the saw-setting' pe atidn. v o

- die '51 receives the 'vil Mervinamma is 'h'an' heejlfil jisfryoivea fthejigaug'e"giiidefbars E 2 and e'agwiil v raisec'lJ'fiD jorfdefvvn to -the. d'e'sired heiglitffor jointing the teetnoftne "t g i gle's to-behse'd; SiiitabIe c ibrathe v is 6 and "the' fioirit 66 f or pbsitlbi' iirig the galige rel a tivetoth'e teeth ofth'e sa'w. o JIn the operations of my new land improved tooth:jointingattachmentthe hand "wheel BI .-''is the uppe pends of both arms 0 t rotatedgto adjust theyuppener ds of thec uide fia nl ilfl fi i fl ii b d l i' e or a bars 62 and fifi to the desired-position for jointing prepei'fins'g'epemtion; hefie tk fth eW-,I eu e il s t eb g P .broken lines the 'filebeingdrawn oventhe'ends a i f l- 

